Winmodem 33600 & x2/56K* User’s Manual
* Depending on line conditions. U.S. Robotics and the U.S. Robotics logo are 3Com registered trademarks. IBM, IBM PC, PC/XT and PC/AT are International Business Machines Corporation trademarks. Microcom Networking Protocol (MNP) is a Microcom Inc. registered trademark.
Table of Contents Introduction 1 How a Modem Works.............................................. 1 How Does Your Sportster Winmodem 33600 & x2/56K Work ? ................................................................... 2 Other Features ....................................................... 3 Package Contents................................................... 4 Installation 5 Sportster Winmodem 33600 & x2/56K Installation...... 5 STEP 1: Insert the Modem Into the Computer ......
Voice Functions 33 Overview of Voice Functions .................................. 33 Speakerphone ...................................................... 34 Implementing Voice Functions ................................ 34 Voice Applications ............................................ 34 Application Settings .......................................... 34 Appendix A – Technical Reference 37 Main AT commands...............................................
Introduction How a Modem Works A modem is a computer peripheral that allows you to communicate with other computers via telephone lines. Because ordinary telephone lines cannot carry digital information, a modem changes the digital data from your computer into analog signals, which can be transmitted much like voice signals. In a similar manner, the modem receiving the call then changes the analog signals back into digital data that the receiving computer can understand.
How Does Your Sportster Winmodem 33600 & x2/56K∗ Work ? With your Sportster Winmodem 33600 & x2/56K*, you can move beyond the boundaries of your computer — around the world, if you’d like. You can fax a graphic to an overseas supplier, update files on your computer at work from your computer at home, surf the Internet…he list goes on.
Accurately Sportster Winmodem 33600 & x2/56K can automatically detect and correct errors during a transmission (V.42/MNP 2-4 error control.) Efficiently The Sportster Winmodem 33600 & x2/56K ’s data compression feature can pack data down to a fraction of its original size. It can also de-compress data compressed by the remote modem (V.42 bis/MNP 5 data compression.
Speakerphone Working with the Sound Card The modem fitted in your Pc is equipped with jack sockets for speakers and microphone on the rear panel as well as an internal connection that goes directly to the sound card (if fitted). It is recommended that for higher quality recording and playing of messages and playing of audio files, your speakers and microphones are connected on the sound card and not directly to the jack sockets on the modem.
Installation Sportster Winmodem 33600 & x2/56K Installation NOTE: Turn the computer and any connected peripheral devices off. This chapter will walk you through the installation of your Sportster Winmodem 33600 & x2/56K. There are two parts to the installation: Hardware (the modem) and software. The modem must be installed before the software.
STEP 1: Insert the Modem Into the Computer Inserting the board into the groove. Installation Procedure 1. Turn off and unplug the computer. 2. Unplug all the peripheral devices (screen, printer, etc.). 3. Remove the computer's cover to have easy access to the internal bus connectors. 4. Choose an unused expansion slot and remove its bracket (shaped like a square ruler) located on the back panel. 5. Insert the board into the groove making sure that its edge makes contact with the back panel of the machine.
TELCO jack is accessible through an opening in the computer's case.) 8. Plug the other end of that cord into a wall jack for an analog line. 9. If you want to use a telephone on that line, the setup is as follows: Plug the telephone's cord into the telephone wall jack as shown above. 10. Plug in the power plug and turn the computer on.
STEP 2: Run the Modem’s Installation Program Sportster Winmodem 33600 & x2/56K comes with an installation diskette that contains an installation program that will help your computer finish installing the modem. This program will also copy modem programs from the diskette onto your computer’s hard drive. The installation program runs a little differently for Windows 95 than it does for Windows 3.1 and 3.11. In this section, follow the steps for the Windows operating system you have.
At this point, you’ll either: • Be able to find the Sportster Winmodem 33600 & x2/56K group in the Program Manager window: If you can find this group, you’re ready to install the communications software. OR • If the computer cannot configure the modem automatically, you will get a Configuration dialog box. You will have to choose an available I/O address and an available IRQ. (NOTE: Do not check the Let Plug & Play configure… option.) • For the I/O address: Choose any on the list.
If the configuration you’ve chosen does not work, you chose an I/O address and/or an IRQ that is not available: If you chose an unavailable I/O address, you will get an error message. Choose another I/O address in the Configuration dialog box that appears. If you chose an unavailable IRQ, you’ll find out later when your communications software program tells you it cannot find the modem. At that point choose another IRQ in the Configuration dialog box.
STEP 3: Installing the Communications Software You’ll need communications software to get the modem working — dialing numbers, downloading files, sending faxes, etc. • If you’re asked to select your modem type from a list, select a high speed Sportster or Courier Dual Standard. • If you cannot select a Sportster or Courier model from the list, try: 1. Typing this “initialization string:” AT&F1 2. And then pressing the ENTER key.
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Changing Country Setup under Windows 95 When travelling with the Sportster Winmodem PC Card, you may need to change the country setup to attain correct operation using other telephone networks. These networks may use different technical parameters, such as Ring pattern and Voltage level. Using Windows 95, follow the procedure below for changing to the required country setup. 1. Click Start | Settings | Control Panel from the main Windows 95 task bar. 2.
3. Click OK. The ‘Modem: Change Country Setup’ dialogue box should appear. Note: The upper-half of this window displays the current country selected. The lower section displays a series of flags offering alternative setup options. 4. Select the appropriate country flag and Click OK. Click on Yes to Save. Note: The Sportster Winmodem PC Card will be reconfigured automatically. To revert back to the original country specification, you must repeat the above procedure.
Using the Modem Installation Test Follow this procedure to check that the modem works correctly. 1. Turn the computer on. 2. Load and run the communications software. Check the software installation manual for further information. Do not be alarmed when a DOSbased hardware diagnostic tool does not detect the presence of your new modem. The new architecture of Sportster Winmodem 33600 & x2/56K is unknown to many comtest programs and DOS-based tools. 3. In the software, set the serial port rate to 9.
6. Execute the function that authorizes sending AT commands to the modem; in other words, put the computer in terminal mode. 7. Verify that the computer and the modem can communicate with each other by sending the following AT command (you can type the command either with uppercase or lowercase letters, but you must not combine the two different types of letters). Press the Enter key (carriage return) , indicated in the following example by the word Enter surrounded by brackets.
$7, (QWHU! The modem will respond to this command by displaying a list of the configuration settings. To modify them, please refer to Appendix A. Resetting the Modem to Factory Settings Some transmission sessions can modify the modem's configurations. If you are unsure of the current configuration of the modem or if it seems to be not working correctly, you might want to reset it to the factory settings. To do this: 1. Run the communications program. 2. Go into the program's terminal mode. 3.
Remarks on Using the Modem Remember the Following Points When Using the Modem: • The modem might not work with all modular telephone sets. Specifically, you must not use the modem with multi-line telephone sets, sets with indicator lights or line selection buttons. • Some voice mail message systems use a specific tone to indicate that a voice message has been received. The modem will not be able to dial as long as this signal is on the line.
Un-Installing the Modem Un-installing the Sportster Winmodem 33600 & x2/56K requires that you: • Remove the modem from the expansion slot after turning off your computer. • Remove the modem programs from the computer’s hard drive after turning your computer back on. You should do this with the “uninstall” program, which can be found: In the Sportster Winmodem 33600 & x2/56K group of the Program Manager window in Windows 3.1 and 3.
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Troubleshooting Problems and Solutions If you encounter problems even though you have followed the installation and use instructions of the modem, refer to the following table that lists the most common failures and their solutions. Identifying the current problem Symptom Solution The software indicates that the modem is not installed. Check the software configuration. Make sure that it is configured for the appropriate COM port (in most cases it should be set to COM2).
The modem does not respond when, in terminal mode, you send AT commands. Check that the COM port to which the modem is connected is properly declared. Check the IRQ configuration in the communications software or in the Windows Control Panel. Check that the application is in terminal mode. If none of the preceeding solutions solve the problem, it means that the modem is certainly in conflict at the COM port/IRQ level. Begin the installation procedure in the Installation chapter.
There is no audible tone when you try to call. The speaker is turned off; reset the modem's settings to the factory settings. The cables are not correctly connected. Check all connections from the telephone wall jack to the modem. There is a problem with the telephone line; check it using a standard telephone set. You are connected to an incompatible telephone network. Refer to the section: ‘Utilization Notes’ in this manual. The modem does not respond to incoming calls.
The modem connects itself correctly to the remote modem, but the connection is interrupted during communications with the message: NO CARRIER. Someone probably hung up from another extension. The modem detected a call waiting signal on the line. Contact the local telecommunications agency to find out how to turn this signal off when you use the modem. Try calling another modem to check if the problem is general or unique to one specific modem.
Intercontinental connections are sometimes interrupted. If the telephone line's quality is low, it is best to reduce the transmission speed in order to insure that the connection remains stable. During file transfer, the modem sends back many transmission errors or a very low transfer rate. The telephone line is bad, select a lower transmission speed. During transmission of a fax, errors alter its legibility or cut off the connection. Check the modem's and the software's flow control.
Before the Modems Connect If your modem does not respond to AT commands. • Make sure you are in terminal mode. (Your communications software should let you switch to terminal mode.) • Check that the modem is set to display result codes and that the result codes are displayed as words. • Try going into terminal mode and: 1. Typing ATE1V1Q0 (the last character is zero) 2. And then pressing the ENTER key • (See Qn and Vn in the Commands chapter.
If your PC reacts as though you are online, but no call has been initiated or received. • Check that modem’s Carrier Detect (CD) signaling is set correctly. (See &Cn in the Commands chapter.) You may need to review the manual that came with your communication software to see what CD operation your software requires. If you are not using the communication software that came with the modem, you may need to change the CD setting. Check the manual that came with the software.
If both modems exchange carrier signals but fail to establish a data communications link. (cont.) When the call is finished, reset the modem by: 1. Typing ATZ 2. And then pressing the ENTER key. Make sure you’ve set your software to the same data format (word length, parity, and number of stop bits) required by the modem you’re trying to connect with and, if your modem is dialing out, that your software is set to a baud rate equal to or higher than that of the other modem.
During Data Transfers If your screen displays random or garbage characters. • Make sure your communications port is set to connect at the maximum possible connect rate. • Set your software to the same word length, parity, and stop bits as the remote modem. • Peripherals (drivers for hardware and software) may be interfering with the transmission. Try disabling the extensions before you run your communications software. • The flow control settings for your software and modem may be different.
If your communications software is reporting many Cyclic Redundancy Check (CRC) errors and low Characters Per Second (CPS). • Place the call again. You may have had a bad phone line or a bad connection. The telephone company routes all calls, even local calls, differently each time you call. • Load the template that enables hardware flow control as well as other optimal settings. Go into terminal mode (your communications software should let you switch to terminal mode) and: 1. Type AT&F1 2.
If You Are Still Having Problems • Re-read this manual, especially the Remarks on Using the Modem section. • Contact your reseller who will be able to provide you with the necessary assistance. This is much more efficient and less costly than sending the modem back to us for a problem that is possibly only a simple matter of adjusting the settings. • If your reseller can't help you, contact your PC Company Customer Support.
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Voice Functions Overview of Voice Functions A voice modem has the capability of being able to transform analog sound data — such as voices — into digital data that are compatible with computers. This digitization operation is called sampling. Once the data is in digitized form, it can be stored on the computer's hard disk in files and be converted and processed by specific applications.
Speakerphone The full duplex SpeakerPhone feature of the modem is accessible by connecting an external speaker to the jack on modem backpanel and a microphone. NOTE: Make sure that the microphone and speaker are at least 30 centimeters apart and not directly facing each other, so as to avoid acoustical coupling between the speaker output and microphone input. Implementing Voice Functions Voice Applications To use the voice functions of the modem, you must use an application designed for this type of modem.
In the following paragraphs, you will find some indications pertaining to the settings of voice applications in order to use the modem. Input/Output Source Selection Set the recording or playback sources as the devices from which you are going to record the local message and listen to the received messages. (External powered speakers, microphone, headset or sound card) Recording and Playback Quality The greater the sampling rate, the better the quality of the message is.
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Appendix A – Technical Reference Main AT commands 1. Type the commands entirely in upper case or lower case but do not type commands using a combination of the two cases. 2. All commands, with the exception of A/ and +++, are preceeded by the AT prefix and are executed after pressing the Enter/ Carriage Return key (). 3. The maximum length of a command is 40 characters. The modem does not count the AT prefix character, the Enter key or spaces.
Basic Command Set AT Required command prefix, except with A/ and +++. Use alone to test for OK result code. $ Displays a basic command list; online help. A/ +++ Re-executes the last issued command. Used mainly to redial. This does not require the AT prefix or a Carriage Return. Escapes to online-command mode. &$ Displays a list of ampersand (&) commands. Any key Aborts off-hook dial/answer operation and hangs up. Manual Answer: goes off hook in answer mode. Pressing any key aborts the operation.
E0 Echo OFF. E1 Modem displays keyboard commands.
Fn Sets online local echo of transmitted data ON/OFF. F0 Local echo ON. Modem sends a copy of data it sends to the remote system to your screen. F1 Local echo OFF. Receiving system may send a remote echo of data it receives. Hn Controls ON/OFF hook. H0 Hangs up (goes on hook) H1 Goes off hook. In Displays the following information. I0 Four-digit product code. I1 Results of ROM checksum. I2 Results of RAM checksum. I3 Product type. I4 Current modem settings. I5 Nonvolatile memory (NVRAM) settings.
Sr=n Sr? S$ T Vn Xn Sets register r to n. (See list of S-register settings on the next section). Displays contents of S-register r. Displays a list of the S-Registers. (See list of S-register settings on the next section). Sets tone dial. Displays verbal/numeric result codes. V0 Numeric codes. V1 Verbal codes. Sets result code displayed. Default is X4.
Xn Setting X0 Result Codes • 0/OK • 1/CONNECT • 2/RING • 3/NO CARRIER • 4/ERROR 5/CONNECT 1200 6/NO DIAL TONE 7/BUSY 8/NO ANSWER* 10/CONNECT 2400 13/CONNECT 9600 18/CONNECT 4800 20/CONNECT 7200 21/CONNECT 12000 25/CONNECT 14400 43/CONNECT 16800 85/CONNECT 19200 91/CONNECT 21600 99/CONNECT 24000 103/CONNECT 26400 107/CONNECT 28800 151/CONNECT 31200 155/CONNECT 33600 Functions Adaptative Dialing Wait for 2nd dial tone (W) Wait for answer (@) Fast Dial X1 X2 X3 X4 X5 • • • • • • • • • • • • • • • • • •
Yn Selects power-on/reset default configuration. Y0 Default is profile 0 setting in NVRAM. Y1 Default is profile 1 setting in NVRAM. Z Resets modem based on factory settings. Z0 Resets modem to NVRAM profile selected by Y command. Z1 Resets modem to NVRAM profile 0. Z2 Resets modem to NVRAM profile 1. Z3 Resets modem to factory default profile 0 (&F0). Z4 Resets modem to factory default profile 1 (&F1). Z5 Resets modem to factory default profile 2 (&F2).
&Gn &Hn &In &Kn &Mn &Nn 44 Sets Guard Tone. &G0 No guard tone, U.S. and Canada. &G1 550 Hz guard tone, some European countries, requires B0 setting. &G2 1800 Hz guard tone, U.K., requires B0 setting. Sets Transmit Data(TD) flow control. &H0 Flow control disabled. &H1 Hardware flow control, Clear to Send (CTS). &H2 Software flow control, XON/XOFF. &H3 Hardware and software control. Sets Receive Data (RD) software flow control (see also &Rn). &I0 Software flow control disabled.
&Pn &Rn &Sn &T n &Wn &Yn &N9 16.800 bps. &N10 19.200 bps. &N11 21.600 bps. &N12 24.000 bps. &N13 26.400 bps. &N14 28.800 bps. &N15 31.200 bps. &N16 33.600 bps. Sets pulse (rotary) dial make/break ratio. &P0 U.S./Canada ratio, 39%/61%. &P1 U. K. ratio, 33%/67%. Sets Receive Data (RD) hardware flow control, Request to Send (RTS) (see also &In). &R1 Modem ignores RTS. &R2 Received Data to computer only on RTS. Controls Data Set Ready (DSR) operations. &S0 DSR override; always ON. &S1 Modem controls DSR.
&Zn=s &Zn=L &Zn? &ZL? Writes phone number string s to NVRAM at position n (n = 03). Writes last executed dial string to NVRAM at position n (n = 03). Displays the phone number stored at position n (n = 03). Displays the last executed dial string. S-Registers • Default values are appropriate for most users. The settings are modified with the ATSr=n command, where r is the number of the S register and n is a decimal value between 0 and 255 (unless otherwise stated).
S6 ! Sets the number of seconds the modem waits before dialing. If Xn is set to X2 or X4, the modem ignores this register and dials as soon as it detects a dial tone (fast dials). The range of acceptable values is countrydependent. S7 60 Sets the number of seconds the modem waits for a carrier. May be set for much longer duration if, for example, the modem is originating an international connection. S8 2 Sets the duration, in seconds, for the pause (,) option in the Dial command.
S12 48 50 Sets the duration, in fiftieths of a second, of the guard time for the escape code sequence (+++).
Reg Default Function S13 Bit-mapped register. Select the bit(s) you want on and set S13 to the total of the values in the Value column. For example, ATS13 = 17 enables bit 0 (value is 1) and bit 4 (value is 16). 0 Bit Value Result 0 1 Reset when DTR drops. 1 2 Reset non-MNP transmit buffer from 1.5K to 128 bytes.♦♦ 2 4 Set backspace key to delete. 3 8 On DTR signal, auto dial the number stored in NVRAM at position 0. 4 16 At power on/reset, Auto Dial the number stored in NVRAM at position 0.
Reg Default Function S15 Bit-mapped register. To set the register see the instructions for S13. 0 Bit Value 0 (zero)1 1 2 2 4 3 4 5 6 7 S16 0 8 16 32 64 136 Result Disable ARQ/MNP for V.22. Disable ARQ/MNP for .22bis. Disable ARQ/MNP for V.32/V.32bis/V.32terbo. Disable MNP handshake. Disable MNP level 4. Disable MNP level 3. MNP incompatibility. Disable V.42 detection phase. Bit-mapped test register. Allowable value is 2. Bit Value Result 0 Reserved. 1 2 Touch tone dialing test. 2–7 Reserved.
S23 19 Stores the ASCII decimal code for the XOFF character. Valid range is 0–127. S24 0 Reserved. Reg Default Function S25 5 Sets the duration, in hundredths of a second, that DTR must be dropped so that the modem doesn’t interpret a random glitch as a DTR loss. (Most users will want to use the default; this register is useful for setting compatibility with older systems running under older operating software.). S26 0 Reserved. S27 1 Bit-mapped register.
Some 52 software incompatibilities. software may not accept 7200, 12000 and 14400 bps result codes.
Bit 4 Bit 5 0 0 Result Complete handshaking sequence: V.42 Detection, LAPM error control, MNP. 16 0 Disable MNP. 0 32 Disable V.42 Detection and LAPM. 16 32 Combined value of 48 negotiates LAPM without Detection phase. Choose this value if the remote modem uses LAPM but does not support the Detection phase. Reg Default S28 Function (Sets the V.32 handshaking time [allowable range of 0–25.4 seconds].) 0 (zero) Eliminates the V.32 answer tones for a faster connection.
7 128 Reserved Reg Default Function S33 Bit mapped register setup for the 28.8 speed modems only. To set the register, see the instructions for S13. 0 Bit Value 0 (zero)1 1 2 2 4 3 8 4 16 5 32 6 64 7 128 S34 0 (zero) Bit mapped register setup. To set registers, see instructions for S13. Bit Value Result 0 (zero)1 Disable 8S-2D trellis encoding 1 2 Disable 16S-4D trellis encoding 2 4 Disable 32S-2D trellis encoding. 3 8 Disable 64S-4D trellis encoding. 4 16 Disable non-linear coding.
This option only applies to connections terminated by dropping DTR. If the modem receives the ATH command, it ignores S38 and immediately hangs up.
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Appendix B – Technical Specifications Sportster Winmodem 33600 & x2/56K Specifications Compatibility Speeds Error correction Data compression Operation Format (DTE-DCE) Command set Flow control Telephone interface Voice coding Tone detection Call differentiation Data: ITU-T V.34, V.FC, ITU-T V.32 bis, V.23, V.22 bis, V.22, V.21 and Bell 212A, 103. Fax: Send and receive Group III Fax, Class 1, Class 2.0; ITU-T V.17, V.29, V.27 ter Data: 33.6K, 31.2K (V.34+), 28.8K, 26.4K, 24K, 21.6K, 19.2K, 16.8K, 14.
Silence detect Dialing Adjustable level and duration Pulse (pulses 0-9), tone (DTMF 0-9, #, *) Call status Dial tone, busy tone, voice detect Configuration storage Two modem configurations and four telephone numbers Transmission level Country specific Reception sensitivity Country specific Operating temperature From 0 to 50 °C Storage temperature From -40 to +70 °C Transportation temperature From -40 to +70 °C Operating humidity From 20 to 80% without condensation Storage humidity From 5 to 90% without con
CE Mark Electromagnetic Compatibility This device complies with the following standards in accordance with the European Directives 91/263/CEE.
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Glossary Analog signals Variable and continuous waves, such as voice tones carried by telephone lines. Compare with digital signals. ARQ General term qualifying error correction protocols that detect errors and automatically re-transmit the incorrect data blocks. See MNP and V.42. ASCII Acronym for American Standard Code for Information Interchange. 7 bit binary code (0 and 1) used to represent letters, numbers and special characters such as $,! and /.
Bit A 0 or a 1 reflecting the use of a binary numbering system (a system that consists of 2 values). This system is used because the computer only recognizes two states, off or on. (Start/Stop bits) Signaling bits attached to a character before it is transmitted; used for asynchronous transmissions. Bits (Start/Stop bits) Signaling bits attached to a character before it is transmitted; used for asynchronous transmissions. Bps The rate in bits per second.
Data mode Mode in which the fax/modem can send and receive data files. A standard modem without facsimile capabilities is always in data mode. DCE (Data Carrier Equipment) Termination equipment of the data circuit. In this manual, this term applies to modems that establish and control the data link on the telephone network. Digital signals Discreet and uniform signals. In this manual, the term refers to bits 0 and 1. DTE (Data Terminal Equipment) Data processing terminal equipment.
Fallback (Rate adjustment). A function that lets rapid modems with error correction control the line quality and fall back to a lower speed if it becomes degraded. Modems go back to a higher speed if the line quality improves. Fax mode Mode in which the fax/modem can transmit and receive facsimiles. Flow control A method that compensates for differences in the data flow coming in to and going out from a modem or other device. See RTS/CTS and XON/XOFF IRQ Interrupt Request.
The modem uses MNP 2-4 and MNP 5 error correction and data compression techniques that are incorporated in recommendation ITU-T V.42. NVRAM Non Volatile Random Access Memory which can be programmed by the user with data that are stored when the modem is powered down. The modem includes this kind of memory to store a default configuration defined by the user and loaded into random access memory (RAM) upon power up. Parity Error detection method that checks the correctness of transmitted characters.
Serial transmission Sequential data transfer, one bit at a time, using only one electrical circuit. Synchronous transmission Data transmission during which both communicating devices are synchronized by a common clock. Using this mode eliminates the need to systematically add a stop bit and a start bit to each transmitted character. Terminal mode Required simulation mode for computers to transmit data.
XON/XOFF Standard ASCII control characters used to tell an intelligent device to stop or resume data transmission. In most systems, typing -S sends the XOFF character (which tells the remote device to stop transmitting). Some equipment, including your modem, interpret -Q as XON (which tells the remote device to resume transmission), others interpret touching any key after -S as an XON.
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Limited Warranty U.S. Robotics warrants to the original end-user purchaser that this product will be free from defects in materials and workmanship for a period of five years from the date of purchase. During the limited warranty period, and upon proof of purchase, the product will be repaired or replaced (with the same or a similar model, which may be a refurbished model) at U.S. Robotics’ option, without charge for either parts or labor.
ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. This limited warranty gives you specific legal rights. You may have others, which vary from nation to nation. Some nations do not allow limitations on duration of an implied warranty, or the exclusion or limitation of incidental or consequential damages, so the above exclusion or limitation may not apply to you.
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